Lock



I. KEMP Jan. 31, 1933.

LOCK

Filed March 14, 1929 2 Sheets-Sheet FlG.3

. INVE TOR v w BY AJTORNEY Jan. 31, 1933. L KEMP 1,895,630

LOCK

Filed March 14, 1929 2 SheetsSheet 2 ATTORNEY Patented Jan. 31, 1933UNITED STATES PATENT OFICE IRVING KEME, OF NEW YORK, N. Y., ASSIGNOR T0KEMP LOCK ING, OF NEW YORK, N. Y.,

A CORPORATION OF NEW YORK LOOK Application filed March 14, 1929.

This invention relates to looks. It is directed to the type of lockgenerally described in my co-pending application No. 252,972, filed Feb.9, 1928 wherein a plurality of bolts are projected in a plurality ofdirections.

An object of this invention is to provide a lock of the characterdescribed having improved means for simultaneously projecting all thebolts into engagement with their respective strikes.

A further object of this invention is to provide a lock of the characterdescribed adapted to be mounted on a door and having means forsimultaneously projecting bolts horizontally and vertically intoengagement with strikes on the door jamb.

Another object of this invention is to provide a neat, rugged, andcompact lock of the character described which shall be relativelyinexpensive to manufacture, comprise few and simple parts, be smooth andpositive in operation, and practical and eificient to a high degree.

Other objects of this invention will in part be obvious and in parthereinafter pointed out. 1

The invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts which will beexemplified in the construction hereinafter described, and of which thescope of application will be indicated in the following claims.

In the accompanying drawings, in which is shown one of the variouspossible illustrative embodiments of this invention,

Fig. 1 is a rear elevational view of a lock embodying the invention withthe rear cover and the extension for the vertical bolts re moved;

Fig. 2 is a crosssectional view taken on line 22 of Fig. 1;

Fig. 3 is a cross-sectional view taken on line 3-3 of Fig. 1;

Fig. 4 is a front elevational view of the lock with one of the verticalbolt extensions removed;

Fig. 5 is a side elevational view of the lock shown in Fig. 4, but withthe strike for the horizontal bolt shown in dotted lines;

Serial No. 346,941.

Fig. 6 is a front elevational view of a door and door j amb with thelock attached; and

Fig. 7 1s a cross-sectional view taken on line 7-7 of Fig. 2.

Referring in detail to the drawings 10 designates a door hinged as at 11to a wall 12, and having a vertical edge portion 13 extending adjacentthe door j arnb 14 when said door is in closed position. Attached tosaid portion 13 of said door 10 is a lock 15 comprising, in general, acasing 16, a horizontal bolt 17 and oppositely extending vertical bolts18 and 19. Said horizontal bolt 17 is adapted to engage a strike 20attached to said door jamb 14.. Attached to said vertical bolts in amanner hereinafter more fully described, are substantially similarextensions 18a and 19a adapted to engage strikes 21 and 22 respectively,secured to said door jamb above and below said strike 20. Housed withinthe lock casing 16 is means 23 for simultaneously actuating said bolts17, 18 and 19 to open and closed position.

The casing 16 comprises a front wall 25, upper and lower walls 26 and 27and end walls 28 and 29. The side walls 26 and 27 are provided with ears26a, 27 a respectively bored as at 26?), 27 b for receiving securingmeans for securing the casing to the door. The casing is so arrangedthat a portion thereof adjacent end wall 29 overlaps the adjacent edgeportion of the door jamb 14. The strike 20 comprises an angle member 30having openings 31 for receiving screws or the like for securing saidstrike tothe edge of the door jamb. Extending outwardly from said member30 is a loop 32 adapted to extend into said casing 16 upon closing thedoor, the front wall 25 of said casing having a slot 32a for receivingthe outer portion 326 ofthe loop. The horizontal bolt 17 is adapted forprojection, in a manner hereinafter appearing, into opening 33 formed bythe loop for engagement withthe outer portion 326 thereof to lock thedoor.

The casing 16 is provided with guide means for slidably mounting saidhorizontal bolt 17. For this purpose said casing is formed with a pairof spaced parallel Walls 35 and 36 contacting the upper and lower sides17a and 175 respectively of said bolt. Formed integrally with the frontface of the easing, on the inner surface thereof are bosses 37 havingsmooth faces 37a for slidably contacting the outer face 17 0 of saidbolt. A backing plate 39 secured to bosses 40 formed with said casing isadapted to press against the inner face 17 (Z of said bolt. Said plate39 is provided with a suitable slot 41 for receiving said loop portion32 of the strike upon opening and closing the door.

For reciprocating said bolt 17 into and out of engagement with thestrike, the front wall 25 of the casing is provided with a boss 45 boredas at 46 and rotatably mounting a knob 47. Fixedly attached to said knobis oneend 48 of a link 49. The opposite end 50 of said link is formedwith an opening 51 for receiving a pin 52 forming an integral part of aconnection arm 53. The latter is preferably downwardly curved as shownin Fig. 1, the opposite end 54 thereof being provided with a pin 55pivotally connected as at 56 to the horizontal bolt 17. It will now beunderstood that rotation of the knob 47 will cause movement of the link49 and connecting arm 53 for translating said bolt 17.

For actuating the bolt 17 from the outside of the door, by use of a key,a link member 57 is pivotally mounted on back plate 39 and provided withmeans (not shown) for cooperating with a key for turning the same. Saidlink 57 is provided with a cylindrical projection 58 rotatablv receivedin a socket portion 59 integrally formed with said connecting arm 53.

Means is provided for projecting and retracting the Vertical bolts 18,19 simultaneo usly with the projection and retraction of the horizontalbolt 17. To this end, the easing is provided with outwardly extendingintegral, aligned tubular members 60 and 61 projecting from the sidewalls 26 and 27 respectively of said casing. Said members 60, 61 arepreferably of rectangular cross-section and are adapted to slid-ablyreceive the vertical bolts 18, 19. Said bolts are provided with hollowtubular portions 62, 63, provided with internal, double, helical,diametrically disposed threads, or ridges 62a, 63a respectively. Thethreads 62a of bolt 18 are turned oppositely to the direction of threads63a of bolt 19. Received within the hollow of each of portions 62 and63, are cylindrical rods 64, 65, respectively, each of said rods havingcomplementary helical grooves 64a, 65a, for cooperating with saidthreads 62a, 63a. Said rods 64, 65 terminate at the inner ends thereofin reduced portions 67, 68, collars 69, 7 0 being attached to saidreduced portions, as by set screws 69a, 70a respectively. For receivingsaid collars 69a, 70a, the horizontal bolt 17 is formed with longtudinalrecesses 71, 72 respectively adjacent the rear surface 170 thereof. Saidcollars 69, 70 are provided with a plurality of annularly arrangedspaced openings 74, 75, respectively. A plurality of aligned pins 76, 77received in bores 76a, 77 a in the bolt 17 adjacent the oppositesurfaces 17a, 175 respectively, are adapted to prorods will causelongitudinal movement inwardly or outwardly of the bolts 18 and 19,depending on the direction of rotation. This action is due to thecoacting helical threads 62a, 64a, and 63a, 65a respectively. By reasonof the steep pitch of said threads and the provision of a double thread,the action is smooth, easy and balanced.

The bolts 18, 19 are formed at the outer ends thereof with a pair ofspaced members 80. The extensions 18a, 19a are preferably made of squarestock and are provided at the inner ends thereof, with blades 80areceived between said members 80 and rigidly secured thereto as byspaced screws or rivets 80?). Although the extensions 18a, 19a asdescribed above, are rigidly attached to mechanism mounted on the door10, said extensions are nevertheless adapted to engage the strikes 21,22 fixed to the door amb. To this end, said extensions 18a, 19a compriseportions 82 aligned with the bolts 18, 19, horizontal portions 84extending at right angles to said portions 82 and adapted to overlap thedoor jamb 14, and aligned vertical portions 85 of square cross section,adapted to register with square openings in strike 21, 22 respectively.

Upon turning the knob 47, in a direction to lock the door, thehorizontal bolt 17, the vertical bolts 18, 19, and the extensions 18a,1964 are simultaneously projected, portions 85 of said extensions,engaging within the openings in the strikes 21, 22. Actuation of theknob (or key mechanism) in the opposite direction obviously will retractthe bolts to open the lock.

It will be noted that since the bolts 18, 19 and the extensions 18a, 19aare substantially similar in construction and symmetrically disposed, abalanced lock is produced, thus facilitating the operation thereof bymeans of the key or knob.

It will be understood that the lock may be constructed for actuation bykey means from both inside and outside of the door 10. In such case,unauthorized removal of the securing means for the casing 16 will notpermit opening of the door since the casing cannot pivot about thesquare end portions 85 of the extensions 18a, 19a. The proper key willstill be necessary for retracting the bolts 18, 19 to permit opening ofthe door.

It will thus be seen that there is provided a device in which theseveral objects of this invention are achieved and which is well adaptedto meet the conditions of practical use.

As various possible embodiments might be made of the above invention,and as various changes might be made in the embodiment set forth, it isto be understood that all matter herein set forth or shown in theaccompanying drawings is to be interpreted as illustrative and not in alimiting sense.

Having thus described my invention I claim as new and desire to secureby Letters atent:-

1. In combination, a door lock, comprising a casing, a bolt, a secondbolt extending at right angles to said first named bolt, and means forsimultaneously projecting said bolts, one of said bolts having a portionnormally extending exteriorly of said casing and adapted to projectbeyond the vertical edge of the door and overlap the door jamb.

2. In a lock, a horizontal bolt, a vertical bolt, and means forsimultaneously projecting said bolts, said means comprising a memberhaving screw threaded engagement with said vertical bolt.

3. In a lock, a horizontal bolt, a vertical bolt, and means forsimultaneously projecting said bolts, said means comprising a memherhaving screw threadeo engagement with said vertical bolt, and a rack andpinion connection with said horizontal bolt.

4 In a look, a casing having a tubular portion of non-circularcross-section extending substantially at right angles to the body ofsaid casing, a bolt slidably mounted in said casing, a second boltslidablv mounted in said tubular portion, said second bolt being hollowand having an internally threaded portion, a member mounted in thehollow of said bolt and adapted to cooperate with said threaded portion.and means associated with said first named bolt and said member forrotating said member upon reciprocating said first mentioned bolt.

In combination with a door and jamb. a lock comprising a casing attachedto said door and having a portion overlapping said door jamb, saidcasing having an opening, a strike mounted on said door j amb and havinga portion receivable within said opening upon shutting said door, a boltwithin said casing adapted to engage said strike, a second bolt having aportion normally projecting from said casing and adapted to overlap saiddoor jamb, and means for simultaneously moving said bolts in transversedirections.

6. In combination with a door and jamb, a casing mounted on said door,strike means mounted on said jamb adjacent said casing,

a horizontal bolt in said casing, a vertical bolt mounted on said casingand having a portion crossing the vertical edge of said door and meansfor simultaneously projecting said horizontal and vertical bolts intoengagement with said strike means, respectively.

7. In a lock, in combination, a casing having a tubular projection, abolt within said casing, a second bolt slidably mounted in said tube,and means for projecting said bolts from said casing, said meansincluding a member having a screw threaded connection with said secondbolt.

8. In a lock, in combination, a casing having a tubular projection, abolt slidably mounted in said tube, and means for projecting said boltfrom said tube, said means including a member having a screw threadedconnection with said bolt, and means for rotating said member, saidmeans comprising a collar secured to said member, said collar having aplurality of annularly arranged spaced openings, and a member slidablymounted within the casing and having a plurality of spaced pins adaptedto engage with- -1n said openings.

9. In a lock, in combination, ing a tubular portion, a bolt, slidablyand non-rotatably mounted within said portion, and means for projectingsaid bolt from said portion, said means comprising amember rotatably andnon-slidably mounted in said casing, and operatively associated withsaid bolt, said member having a plurality of annularly arranged spacedopenings, and a second member slidably mounted within said casing andhaving a plurality of spaced, aligned projections adapted to engagewithin said openings for rotating said first member. V

10. In combination with a door, means for locking said door comprising abolt mounted on said door and having'a portion substantially parallel tothe outer edge of said door, said portion being of non-circularcross-section, a strike having an opening adapted to slidably receivesaid portion, and means for projecting said portion into said opening.

11. In a lock, in combination, a casing adapted for attachment to a dooradjacent the edge portion thereof, said casing having oppositelyextending tubular portions, bolts mounted in said tubular portionshaving portions adapted to project beyond the vertical edge of saiddoor, and means mounted in the casing for simultaneously projecting saidbolts in opposite directions.

12. A door lock comprising a casing adapted for attachment to a dooradjacent the vertical edge thereof, a bolt mounted on said casing, apair of bolts mounted on said casing, each of said pair of bolts havingportions parallel to said first named bolt adapted to extend beyond thevertical edge of said door a casing havand exteriorly of said casing,and means extending exteriorly of said casing and adapted to normallyproject beyond the vertical edge of said door, and means Within saidiasing for simultaneously projecting said olts.

14. In combination with a door, a lock for said door, comprising acasing mounted on said door, a bolt having a portion slidably receivedWithin said casing and extending therefrom, and a portion normallyextending exteriorly of said casing and projecting beyond the edge ofsaid door, a second bolt mounted in said casing, a strike mounted on adoor jamb, and means for projecting said first bolt in a directionparallel to said edge of said door and said second bolt in a directionperpendicular to said edge, into engagement with said strike.

15. A look comprising a casing having an opening, a bolt mountedtherein, a second bolt having a pair of parallel portions transverse ofsaid first bolt and a portion interconnecting said parallel portions,one of said parallel portions being slidable Within said opening, saidinterconnecting portion and said other parallel portion being disposedexteriorly of said casing, and means for moving said first bolt in onedirection and said second bolt at an angle to said direction.

16. A lock adapted to be attached adjacent the edge of a door,comprising a casing, a bolt slidably mounted in said casing and disposedtransversely of said edge of said door,

and a pair of identical, symmetrically disposed bolts transverse to saidfirst mentioned bolt, each of said pair of bolts having a portionadapted to project beyond said edge of said door, strike means adaptedto be attached to the door jamb, having a portion for engaging saidfirst bolt and portions for engaging said second pair of bolts, andmeans for moving all of said bolts into engagement with said strikeportions, said pair of bolts being adapted to engage their respectivestrike portions without engaging said first bolt.

17. A look for a door comprising a casing adapted to be mounted adjacentthe outer edge of said door and having an opening, a bolt having aportion parallel to the edge of the door and slidably extending intosaid opening,,a portion normally extending exteriorly of said casing andprojecting beyond IRVING KEMP.

